Information storage medium in which digital contents are recorded, and method and system of managing digital contents

Abstract

An information storage medium in which digital contents having a configuration that are to be reproduced only by a user having authorization, and a method and a system of producing and reproducing the digital contents. In the information storing medium in which digital contents are recorded, the digital contents include device information to identify a user device and digital data, the device information being used to determine a state of a usage authorization of the digital contents.

1 . An information storing medium in which digital contents are recorded, wherein the digital contents comprise device information to identify a user device and digital data, the device information being used to determine a state of a usage authorization of the digital contents.  
   
   
       2 . The information storing medium according to  claim 1 , wherein the user device is a device to reproduce the digital contents.  
   
   
       3 . An information storing medium in which digital contents are recorded, the information storing medium comprising: 
 a data area in which audio and/or video data is stored;    a header area in which header information about the audio and/or video data is stored; and    an added information area in which additional information about the audio and/or video data is stored, wherein device information to identify a user device is recorded in at least one of the data area, the header area, and the added information area, the device information being used to determine a state of a usage authorization of the digital contents.    
   
   
       4 . The information storing medium according to  claim 3 , wherein the user device is a device that reproduces the digital contents.  
   
   
       5 . A method of producing digital contents, the method comprising: 
 obtaining digital data; and    inserting device information to identify a user device into the obtained digital data that is authorized to produce the digital contents.    
   
   
       6 . The method according to  claim 5 , wherein the obtaining of the digital data comprises: 
 receiving an audio and/or video signal from an audio and/or video signal source; and    encoding the audio and/or video signal in a predetermined format to transform the audio and/or video signal into the digital data.    
   
   
       7 . The method according to  claim 6 , wherein the encoding of the audio and/or video signal into the digital data further comprises producing the obtained digital data including a data area in which audio and/or video data is stored, a header area in which header information about the audio and/or video data is stored, and an added information area in which additional information about the audio and/or video data is stored; and wherein the inserting of the device information comprises inserting the device information into at least one of the data area, the header area, and the added information area.  
   
   
       8 . The method according to  claim 6 , wherein the inserting of the device information comprises: 
 extracting the identity information of a device that reproduces the digital data; and    inserting the extracted identity information into the digital data.    
   
   
       9 . The method according to  claim 5 , wherein the obtained digital data comprises a data area in which audio and/or video data is stored, a header area in which header information about the audio and/or video data is stored, and an added information area in which additional information about the audio and/or video data is stored, and wherein the inserting of the device information comprises inserting the device information into at least one of the data area, the header area, and the added information area.  
   
   
       10 . The method according to  claim 5 , wherein the inserting of the device information comprises: 
 decoding the obtained digital data; and    encoding the decoded data in a predetermined format and inserting the device information.    
   
   
       11 . The method according to  claim 5 , wherein the obtaining of the digital data comprises downloading the digital data from a remote server.  
   
   
       12 . The method according to  claim 11 , wherein the inserting of the device information comprises: 
 decoding the obtained digital data; and    encoding the decoded data in a predetermined format and inserting the device information.    
   
   
       13 . A computer readable medium having a program stored thereon to execute the method according to  claim 5 .  
   
   
       14 . A method of producing digital contents, comprising: 
 receiving an audio and/or video signal from an audio and/or video signal source;    extracting device information to identify a user device; and    encoding the audio and/or video signal in a predetermined format and inserting the device information into the formatted audio and/or video signal.    
   
   
       15 . A computer readable medium having a program stored thereon to execute the method according to  claim 14 .  
   
   
       16 . A method of providing digital contents, the method comprising: 
 receiving device information to identify a user device;    inserting the received device information into the digital contents to be provided; and    transmitting the digital contents into which the device information is inserted.    
   
   
       17 . The method according to  claim 16 , further comprising: 
 authenticating the user device in accordance with the received device information; and    determining whether the digital contents are to be provided.    
   
   
       18 . The method according to  claim 17 , wherein the inserting of the device information comprises: 
 decoding the digital contents to be provided; and    encoding the decoded data in a predetermined format and inserting the device information into the formatted decoded data.    
   
   
       19 . A method of reproducing digital contents, the method comprising: 
 reading device information included in the digital contents;    reading device information from a user device that is to reproduce the digital contents;    comparing the device information of the digital contents with the device information of the user device; and    determining whether the digital contents are to be reproduced according to the comparison result.    
   
   
       20 . A computer readable medium having a program stored thereon to execute the method according to  claim 19 .  
   
   
       21 . The method according to  claim 20 , wherein the determining comprises determining to reproduce the digital contents if the device information of the digital contents is identical to the device information of the user device.  
   
   
       22 . A server providing digital contents, the server comprising: 
 a digital contents storing unit to store the digital contents;    a data transceiver to receive a digital contents request, the digital contents request including device information to identify a user device and to transmit the requested digital contents to a client requesting the digital contents; and    a digital contents transforming unit to obtain the requested digital contents from the digital contents storing unit, to insert the transmitted device information into the obtained digital contents to produce digital contents to be transmitted to the client, and to output the digital contents to the data transceiver.    
   
   
       23 . A system to reproduce digital contents, the system comprising: 
 a digital contents storing unit to store the digital contents; and    a digital contents reproducing unit to obtain the digital contents to be reproduced from the digital contents storing unit, to compare device information inserted in the obtained digital contents with its own device information, and to determine whether the obtained digital contents are to be reproduced.    
   
   
       24 . The system according to  claim 23 , further comprising: 
 a data transceiver to receive the digital contents via a network; and    a digital contents transforming unit to insert its own device information into the received digital contents, and to store the digital contents in the digital contents storing unit.